We have four outside light fixtures in the front of the house, all controlled by a single indoor switch. One of them has stopped working (so it can't be a circuit breaker issue).
It's not the bulbs, since they work in the other fixtures and the bulbs from the other fixtures do not work in the faulty fixture.
Does that mean the only thing it could be is the wiring for the faulty fixture? There's no way all three sockets in the fixture went bad at the same time.